Method of embossing wood grain patterns

Abstract

The invention is directed to a method of embossing wood grain patterns on fiberboard surfaces. A Mylar sheet is placed between the embossing plate and the coated fiberboard. The Mylar sheet prevents removal of the coating from the fiberboard and still permits good detail for fine embossing.

What is claimed is: 
     
       1. A method of embossing a wood composition board surface having a paint coating thereon comprising the steps of: (a) forming a mirror image of the pattern to be embossed on a metal embossing plate, said pattern being a wood grain pattern with embossing lines of 1-10 mils in width and 1-10 mils in height above the embossing plate valleys;   (b) embossing the surface of the paint coated wood composition board with the metal embossing plate, said plate being heated to about 300°-500° F., said embossing being done with a pressure of about 1,500 pounds per square inch applied for 1-5 seconds; and   (c) the improvement comprising: (1) positioning a plastic sheet with a thickness of 0.5-1.5 mils between said paint coated composition board surface to be embossed and said metal embossing plate during the embossing step, whereby the absence of the plastic sheet will result in the removal of some of the paint coating from the board surface when the embossing plate is removed from the board surface after embossing, and the presence of the plastic sheet prevents paint removal but still results in very little loss of grain detail in embossing the wood surface.